jugander writes "nilss over at the iPodLinux Project (previously on /.) has performed one of the coolest and most bizzare hacks I've seen in a while. He was able to extract the bootloader from the 4G iPod by sounding out ticks with the iPod's squeaky piezo. With some tweaking and a makeshift recording studio, he was able to dump the 64 kb file at 5 bytes/sec. And yes, this means that 4G iPods can now boot linux!"